Mitral valve device implanted through atrial septum and implantation method
A mitral valve and atrial septum technology, applied in the field of medical devices, can solve the problems of native valve leaflet damage, tissue compression, blockage, etc., and achieve the effect of increasing the contact area, enhancing the anchoring effect, and reducing damage
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Embodiment 1
[0046] This embodiment provides a mitral valve device implanted through the atrial septum, including: a valve prosthesis and a ventricular anchor 140. The valve prosthesis includes a stent main body 110 and an artificial valve leaflet 130 that play a supporting role. The artificial leaflet 130 is fixed on the stent main body 110; the ventricular anchor 140 includes a connecting portion 141 and an anchoring portion 142 attached to the inner wall of the ventricle, and the anchoring portion 142 is fixed to the stent through the connecting portion 141. Stent body 110; after the prosthesis device is released, the valve prosthesis is fixed at the original valve annulus to replace the original valve to open or close the blood flow channel, and the anchoring part 142 is The stent body 110 provides a firm anchoring force to prevent the stent body 110 from being impacted into the left atrium.
[0047] In the prior art, in order to solve the problem of valve prosthesis anchoring, the met...
Embodiment 2
[0063] This embodiment provides a mitral valve device implanted through the atrial septum, which is an improvement on the basis of Embodiment 1, wherein the anchoring part 142 of this embodiment is configured as an inverted cone structure, and the inverted cone After the ventricular anchor is released, a cavity 301 is formed between the anchor part 142 and the ventricular wall to reduce the capacity of the left ventricle.
[0064] In patients with dilated cardiomyopathy, LV enlargement results in disproportionately increased LV tension and increased oxygen consumption, resulting in reduced LV efficiency. The cavity 301 formed between the anchoring part and the ventricular wall in this embodiment reduces the capacity of the left ventricle, so that the tension of the left ventricle of the patient is reduced, thereby achieving the effect of treating heart failure. For patients with larger left ventricle and worse systolic function, the therapeutic effect of reducing left ventricl...
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